I will never buy Layer cakes again after trimming 3 packs all down to 9 1/2 squares due to none of them being 10x10. I have a few Jelly Rolls I haven't opened but let my DGD use one & I just loved all the colors & designs in it so maybe some day I'll actually open one up myself, Charm squares I've used a couple of times & they are usually pretty square.